In the first year, weight gain is fast, then it slows on purpose. Knowing the rough rhythm — not exact numbers — keeps a single slow week from causing panic.
The typical rhythm
Newborns usually regain birth weight within two weeks. After that, most babies gain about 150–200 grams a week for the first three months, then the pace eases. By six months, growth slows further, and the second half of the first year is about steady progress rather than big jumps.
The WHO curve is the anchor
The WHO weight-for-age chart was built from healthy breastfed babies. A baby who tracks along any percentile band is fine, even at the edges. The curve matters more than the number.
When a dip deserves a second look
A single slow week is rarely a problem. Talk to your pediatrician when weight stays flat across two or more checkups, when a baby crosses down through several percentile lines, or when feeding is difficult and weight is falling together.
Track the trend, not the tension
GrowChart plots each measurement on the official WHO curve and shows the trend at a glance, so you can see steady progress even when one week looks unremarkable.
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